@treleanor would you say charity should not exist then?
I sort of agree with your premise: that society should provide enough for everyone to have a good standard of living.
But we won't get too that tomorrow, or in a decade. That means capitalism has to be substantially unwound and we take a totally different approach to justice and politics. That's going to take a long time.
We can't just turn off the tap of charity and expect everything to just work.
So, ok, you are free to hoard your own wealth and not give anything to anyone. I'll continue donating to the causes and charities that are working within and outside the system to bring about the change you want to see.